Zip your lip.
[Idiom] ZIP YOUR LIP. - Uncover the Secrets to Staying Silent When Necessary
Keep quiet.
Zip your lip" is a direct and informal way to tell someone to stop talking or to keep a secret. It implies that one should close their mouth as if zipping it shut. For instance, if secrets are being shared, someone might say "zip your lip" to prevent further spread of the information.
Example Sentences
Just zip your lip and listen for once!
Be quiet and listen for once!
She wished her coworker would zip his lip during meetings.
She wished her coworker would be quiet during meetings.
During the movie, I wished that the chatty couple behind us would just zip their lips.
During the movie, I wished the chatty couple behind us would be quiet.